Effect stretch receptor neuron

Picrotoxin at 10 pM reduced the GABA response in the stretch receptor neuron (Fig. 2) and the dactyl abductor muscle. The muscle response was also slightly reduced by 0.5 mM bicuculline (Fig. 4), but this had no effect on the stretch receptor. No change in the neuron or muscle response to GABA was seen after treatment with the steroid R5135 (mM), ethyl bicyclophosphate (mM) or pentobarbitone (mM). 

The effect of pyrethroids on the stretch receptor neuron is described in more detail by Chalmers and Osborne (8). These results agree with earlier studies on the insect neuromuscular junction in which the actions of pyrethroids were interpreted entirely on the basis of their actions on the sodium channels of the presynaptic axons (SO ... 

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